refactor: update customParseFormat, allow parse locale from argument

src/index.js

@@ -28,12 +28,12 @@ const parseLocale = (preset, object, isLocal) => {
   return l
 }
 
-const dayjs = (date, c) => {
+const dayjs = (date, c, pl) => {
   if (isDayjs(date)) {
     return date.clone()
   }
   // eslint-disable-next-line no-nested-ternary
-  const cfg = c ? (typeof c === 'string' ? { format: c } : c) : {}
+  const cfg = c ? (typeof c === 'string' ? { format: c, pl } : c) : {}
   cfg.date = date
   return new Dayjs(cfg) // eslint-disable-line no-use-before-define
 }
@@ -408,5 +408,6 @@ dayjs.unix = timestamp => (
 )
 
 dayjs.en = Ls[L]
+dayjs.Ls = Ls
 
 export default dayjs

src/plugin/customParseFormat/index.js

@@ -159,13 +159,13 @@ const parseFormattedInput = (input, format) => {
 }
 
 
-export default (o, C) => {
+export default (o, C, d) => {
   const proto = C.prototype
   const oldParse = proto.parse
   proto.parse = function (cfg) {
-    const { date: input, format } = cfg
+    const { date: input, format, pl } = cfg
     if (format) {
-      locale = this.$locale()
+      locale = pl ? d.Ls[pl] : this.$locale()
       this.$d = parseFormattedInput(input, format)
       this.init(cfg)
     } else {

test/plugin/customParseFormat.test.js

@@ -111,6 +111,19 @@ it('parse month from short string with locale in config', () => {
   expect(dayjs(input, { format, locale: uk }).valueOf()).toBe(moment(input, format, 'uk').valueOf())
 })
 
+it('parse month from short string with locale in argument', () => {
+  const input = '2018 трав 03'
+  const format = 'YYYY MMM DD'
+  expect(dayjs(input, format, 'uk').valueOf()).toBe(moment(input, format, 'uk').valueOf())
+})
+
+it('parse month from string with locale in argument', () => {
+  const input = '2018 лютий 03'
+  const format = 'YYYY MMMM DD'
+
+  expect(dayjs(input, format, 'uk').valueOf()).toBe(moment(input, format, 'uk').valueOf())
+})
+
 it('return Invalid Date when parse corrupt string', () => {
   const input = '2018 Turnip 03'
   const format = 'YYYY MMMM DD'